1 research outputs found
Influence of cerium concentration on the structure and properties of silica-methacrylate sol–gel coatings
The aim of this work was to study the effect of
the incorporation of cerium nitrate in a silica-methacrylate
sol–gel hybrid matrix reinforced with silica nanoparticles.
Sols, coatings and powders have been studied, focusing
specially in the determination of the redox ratio Ce3?/Ce4?
and films structure. Sols have been characterised using
viscosity measurements and FT-IR spectroscopy, and
powders and coatings obtained with different Ce contents
through UV–Vis and FT-IR spectroscopy, TGA, TEM,
AFM and FE-SEM. The goal was to reach the best compromise
between maximum cerium concentration and
coating stability to better understand the mechanisms acting
in active anti-corrosive processes.Peer reviewe